Before the current drought, the jutting steeple of the church (pictured in an undated file photo) acted as a depth gauge for the hydroelectric plant's reservoir.
在近期干旱之前，教堂高耸的尖顶(此张未标明日期的资料图片所示)是作为水力发电站蓄水池水位高度的标准测量工具。
The measures including micrometer, calipers, depth gauge etc.
量具包括千分尺、卡尺、深度尺等。
The measures including micrometer, calipers, depth gauge etc.
量具包括千分尺、卡尺、深度尺等。
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